Paul Campbell, Charleston International Airport director, says the man was arrested by federal authorities in Charleston after the plane landed.

Federal court documents say the man was served four shots of vodka during the flight. He was reportedly making one female passenger uncomfortable with inappropriate questions before touching another woman seated next to him.

Campbell says the man also may have pushed a flight attendant in addition to the other accusations against him.

The suspect, Michael Haag, is charged with interfering with flight crew members and obscene exposure, federal court documents show.